Abstract
A single lightweight engine capable of operating over a wide range of Mach numbers from startup to the hypersonic regime, which was proposed for aircars, aircrafts, and spaceships (Naitoh et al, 2010, 2011, 2012), has an impressive potential of low noise and high thermal efficiency. Its new compression principle is based on super multijets colliding with pulsation. Shocktube experiments and computational fluid dynamics with a chemical reaction model at about M=1 clarified the efficiency and stability of this engine system. In this report, computations for this engine system extended with a special twister piston show reduction of thermal loss and noise, even for low subsonic Mach number M< 0.3. Then, the present engine has a good affinity with ram-scram system, because the present engine does not include turbofan system at the engine center. Thus, we will also show computational results for M>2. We also confirmed combustion occurrence by performing primitive testes for two prototype engines.
| Original language | English |
|---|---|
| Title of host publication | 44th AIAA Thermophysics Conference |
| Publication status | Published - 2013 |
| Event | 44th AIAA Thermophysics Conference - San Diego, CA Duration: 2013 Jun 24 → 2013 Jun 27 |
Other
| Other | 44th AIAA Thermophysics Conference |
|---|---|
| City | San Diego, CA |
| Period | 13/6/24 → 13/6/27 |
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ASJC Scopus subject areas
- Aerospace Engineering
- Mechanical Engineering
- Condensed Matter Physics
Cite this
Simultaneous attainment of light-weight, high-efficiency, and low noise : By the supermultijet-twister engine working from startup to hypersonic scram mode. / Naitoh, Ken; Marui, Mikiya; Ishida, Kouichi; Sagara, Yoshitaka; Tamura, Taro; Shimizu, Dai; Nonaka, Shouhei; Kubota, Tomoaki; Hashimoto, Taiki; Nojima, Yoshiyuki; Tanaka, Masato.
44th AIAA Thermophysics Conference. 2013.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Simultaneous attainment of light-weight, high-efficiency, and low noise
T2 - By the supermultijet-twister engine working from startup to hypersonic scram mode
AU - Naitoh, Ken
AU - Marui, Mikiya
AU - Ishida, Kouichi
AU - Sagara, Yoshitaka
AU - Tamura, Taro
AU - Shimizu, Dai
AU - Nonaka, Shouhei
AU - Kubota, Tomoaki
AU - Hashimoto, Taiki
AU - Nojima, Yoshiyuki
AU - Tanaka, Masato
PY - 2013
Y1 - 2013
N2 - A single lightweight engine capable of operating over a wide range of Mach numbers from startup to the hypersonic regime, which was proposed for aircars, aircrafts, and spaceships (Naitoh et al, 2010, 2011, 2012), has an impressive potential of low noise and high thermal efficiency. Its new compression principle is based on super multijets colliding with pulsation. Shocktube experiments and computational fluid dynamics with a chemical reaction model at about M=1 clarified the efficiency and stability of this engine system. In this report, computations for this engine system extended with a special twister piston show reduction of thermal loss and noise, even for low subsonic Mach number M< 0.3. Then, the present engine has a good affinity with ram-scram system, because the present engine does not include turbofan system at the engine center. Thus, we will also show computational results for M>2. We also confirmed combustion occurrence by performing primitive testes for two prototype engines.
AB - A single lightweight engine capable of operating over a wide range of Mach numbers from startup to the hypersonic regime, which was proposed for aircars, aircrafts, and spaceships (Naitoh et al, 2010, 2011, 2012), has an impressive potential of low noise and high thermal efficiency. Its new compression principle is based on super multijets colliding with pulsation. Shocktube experiments and computational fluid dynamics with a chemical reaction model at about M=1 clarified the efficiency and stability of this engine system. In this report, computations for this engine system extended with a special twister piston show reduction of thermal loss and noise, even for low subsonic Mach number M< 0.3. Then, the present engine has a good affinity with ram-scram system, because the present engine does not include turbofan system at the engine center. Thus, we will also show computational results for M>2. We also confirmed combustion occurrence by performing primitive testes for two prototype engines.
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M3 - Conference contribution
AN - SCOPUS:84883546412
BT - 44th AIAA Thermophysics Conference
ER -